Merge "Pass undercloud's private key to inventory used in package_update."

tripleoclient/utils.py

@@ -1076,6 +1076,8 @@ def get_tripleo_ansible_inventory(inventory_file=None,
                 '--stack', stack,
                 '--ansible_ssh_user', ssh_user,
                 '--undercloud-connection', 'ssh',
+                '--undercloud-key-file',
+                '/var/lib/mistral/.ssh/tripleo-admin-rsa',
                 '--static-yaml-inventory', inventory_file)
         except processutils.ProcessExecutionError as e:
             message = _("Failed to generate inventory: %s") % str(e)